Tttrnbuckle tor wire rigging



"a nut, n, or in any other suitable manner.

@anni dtiljl'rc.

WILLIAM H. SHOCK, OF BALTIMORE, MARYLAND.

Letters Patent N 97,238, dated Nocember 23, 1869.

IMPROVEMENT IN SPRING TURNBUCKLE FOR WIRE RIG-GING- The Schedule referred to in these Letters Patent and making part of the name.

To all whontfit mag/concern.- Y

Be it known that I, WILLIAM H. Snoek, of Bat timore, in' the county of Baltimore, and State of Maryland, have invented certain new and useful Im'- provements in Ships Rigging; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the acompanying drawings, making part of this specification, and to the letters of reference marked thereon, like letters indicating like partswherever they occur.

To enable others skilled in the art to construct and use my invention, I will proceed to describe it.

My invention consists of an improved spring-fastening for -the standing rigging of ships or vessels, and

vintended more' especially for use in connection with wire-rope rigging. v

Figure 1 is a side elevation of my improved device, ready for use; Figure 2 is a similar view with the upper pori-ion shown in section, on the line z a: of fig. 3;

Figure-3 is a transverse section on the line z n: of

fig. l.; and l Figure 4 is a similar View, taken on the line y y of fig, 2.

Since the introduction of wire-rope rigging for ves-y sels, it has become necessary to provide some means lfor rendering the same more yielding, in order to protect. the rigging and its fastenings from the injury that would otherwise occur from the sudden jerks and str'ains to which they are subjected by the rolling and pitching of ,a the vessel.

VItis also `necessary that the device used for this .purpose shouldbe so constructed as to be available in the various regions and climes that vessels are necessarily compelled to visit. i

vIt is further desirable that` the apparatus should be strong and-compact, occupying as little room as possible, and capable of adjustment, in order lto tighten up or loosen the rigging, as may be desired.

I construct a tube, A, of metal, with a hole in its bottom to receiveV the upper end of a screw-rod, D, -which turns loosely therein, and is secured thereto by This screw-rod D has an enlargement, I, just below the bottom of the tube A, with a hole through it for the insertion of lever or rod for turning it.

A stirrup, C,is provided, havinga head with a screw cut in it, for the rod I) to Work in, the lower end of thisstirrup C being pivoted by a. pin or bolt, d, to a metal strap, G, which is to be bolted securely to the side ofthe vessel.

'Ilo the lower end ofthe rod Dis secured`r loosely ya guide, h, the ends of which are yrecessed so as to slide upon and be guided by the side-bars of the stirrup O,

on this bolt B is slipped a series of rubber disks, b, of

somewhat less diameter than the interior of the tube A, there being al thin metal disk or washer, e, placed between each of 'the adjoining rubber cushions, as representedin fig. 2.

There is also a 'metal disk, a,'of proper size to fit into the end of the case A, slipped ou to the bolt B before vthe rubberis placed thereon, with a screwthread cut on its periphery to tit into a corresponding .screw cut on the interior of the case at its upper end.

` Another disk, l', is screwed on to the'end of the bolt B after the rubber disks are applied,' this diskl 4 heilig of such a size as to permit it to move freely within the tube A.

For greater security, the disk lfand the nut u, or either of them, may be prevented from unscrewing by having the end of the rods slightly headed down, or

they may be secured by a pin or a jam-nut.

In preparing the apparatus for use, the rubber cushions b should be made of such a diameter that they may be compressed vertically whenstrain is brought upon them, and thus permit the Vrigging to yield to the required extent, by the time their lateral expansion shall cause their peripheries to come in contact with the inner walls of the case, beyond which point their vertical compression can not extend.

Were it not for this tubular case surrounding the rubber, and` thus confining it within certain fixed l limits, it woiild be forced sidewise out of position, and

thus repdered useless for the purpose intended, but, by being thus inserted within the case, it ispermitted to yield suiciently' for the purpose desired, and at the same time is kept in position and preserved from injury. l

By these means, I am enabledto' produce a device that is strong, durable, compact, and neat, and that admirably answers the desired end.

Having thus described my invention,

The apparatus, consisting ofthe tubular case A, having the screw-rod D and stirrup O secured thereto, and provided with the bolt B, having the rubber springs or disks b fastened thereon', all constructed and arranged to operate 'substantially as and for the purpose set set forth i WM. H. SHOCK.

W'itnesses:

H. B. Mens,- P. T. DODGE. 

